Contents
How can I do that in Bash with WC?
I would like to have something like $lines, $words and $characters associated to the values 2, 5, and 23. How can I do that in bash? There are other solutions but a simple one which I usually use is to put the output of wc in a temporary file, and then read from there:
Do you need a temporary file for WC?
There are other solutions but a simple one which I usually use is to put the output of wc in a temporary file, and then read from there: The advantage of this method is that you do not need to create several awk processes, one for each variable. The disadvantage is that you need a temporary file, which you should delete afterwards.
How to store a variable in a file?
Closed 3 years ago. Given a filepath, I would like to find out how many lines there are and store them into a variable. For example: In a file, I would like to have the number (or string 3) stored. Tried the following commands: To run a subshell use $ (…) in bash. And you don’t need to redirect the input, but simply name the input file.
How to get just the integer from WC?
Basically I want to write the line numbers and word counts to the screen after the file name. You can use the cut command to get just the first word of wc ‘s output (which is the line or word count): will do the job. But this output includes prefixed whitespace as wc right-aligns the number.
How to pipe wc-l output to echo output-stack?
With the -v, –invert-match option (see below), count non-matching lines. -h, –no-filename Suppress the prefixing of file names on output. This is the default when there is only one file (or only standard input) to search. -i, –ignore-case Ignore case distinctions in both the PATTERN and the input files.
How to pipe output from a command into a string?
To simply embed the (stdout) output from a command in a string, without the need to also store that output in a variable, simply use a command substitution ( $ (…)) inside a double-quoted string ( “…”): As pointed out in Inian’s answer, grep supports counting matches directly, via its -c option, so the above can be simplified to: